Pyramidal diffuser
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Description
Claims
The ornamental design for a pyramidal diffuser, as shown and described.
Referenced Cited
U.S. Patent Documents
D185976 | August 1959 | Meyer |
D208461 | September 1967 | Morgan |
D209721 | December 1967 | Stanley |
D214939 | August 1969 | Arrigoni |
3922073 | November 1975 | Schwartz |
D300877 | April 25, 1989 | Cyr |
D362081 | September 5, 1995 | Bilbrey |
D411031 | June 15, 1999 | Conn et al. |
D473667 | April 22, 2003 | Fromm |
D499480 | December 7, 2004 | Stauffer |
Patent History
Patent number: D568529
Type: Grant
Filed: Dec 30, 2005
Date of Patent: May 6, 2008
Assignee: Acoustics First Corporation (Richmond, VA)
Inventors: C. Nicholas Colleran, Jr. (Richmond, VA), Samuel J. Colleran (Richmond, VA), Ryan L. Larkin (Richmond, VA)
Primary Examiner: Freda S. Nunn
Assistant Examiner: Kevin K Rudzinski
Attorney: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Application Number: 29/245,816
Type: Grant
Filed: Dec 30, 2005
Date of Patent: May 6, 2008
Assignee: Acoustics First Corporation (Richmond, VA)
Inventors: C. Nicholas Colleran, Jr. (Richmond, VA), Samuel J. Colleran (Richmond, VA), Ryan L. Larkin (Richmond, VA)
Primary Examiner: Freda S. Nunn
Assistant Examiner: Kevin K Rudzinski
Attorney: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Application Number: 29/245,816
Classifications
Current U.S. Class:
With Refractive Rib Or Groove, E.g., Prismatic, Etc. (D26/122)